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Asbestos Supervisor Initial Exam
Colorado 2025 Questions With
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Asbestos is what type of material?
Naturally occurring fibrous silicate material
Asbestos health problems are caused mainly by:
Inhalation of asbestos fibers into the lower lung area
Smokers who work with asbestos are ______ times more likely to develop lung cancer over a non- smoking, non-asbestos worker.
50
Which asbestos related disease is always terminal, not related to smoking and caused more by the smallest fibers?
mesothelioma
A half-face, negative pressure, HEPA cartridge respirator has a protection factor of 10. This means:
The mask will protect the worker up to 10 times the OSHA PEL
Per OSHA 29 CFR 1926.1101 determination of employee exposure shall be made from ____________ samples that are representative of the 8 hour TWA of each employee.
Breathing Zone
The term HEPA means:
High Efficiency Particulate Air (absolute)
What type of vacuum should be used for picking up Asbestos debris?
HEPA
Which respirator is the minimum level of approved respiratory protection for asbestos abatement?
Half face negative pressure Respirator
Which type of Asbestos "wet" with water easiest?
Anthophyllite
Which individual, if properly certified, would have access to an asbestos site in a building?
NYS Code Rule 56 final clearance air quality standard is:
<0.01 fiber/cc or background level, whichever is greater
Asbestos was used in which of the following materials?
a. Insulation (b) Fire proofing (c) Acoustical tiles
The disease caused by the inhalation of asbestos fibers that causes scarring of the lung tissue and reduces the lung capacity?
a. Asbestosis (b) Mesothelioma (c) Colitis
An agent added to water to improve wetting and penetration into asbestos-containing materials and which helps keep asbestos out of the air is a:
Surfactant
What is the EPA definition of friable asbestos containing materials?
An asbestos containing material that can be crumbled or crushed by hand pressure
A form of highly friable asbestos is:
Sprayed-on fire proofing
What practice(s) does OSHA ban in a regulated work area?
a. Eating (b) Smoking (c) applying cosmetics inside the abatement work area
The Federal agency responsible for the enforcement of non-governmental worker protection regulations is:
Occupational Health and Safety Administration (OSHA)
Respirators used for asbestos removal should be approved by what agency?
National Institute of Occupation Safety and Health (NIOSH)
During removal of air cell steam pipe lagging using a glove bag as a containment structure, which method best applies?
Cut along the seam in order to remove lagging
A powered air purifying respirator (PAPR)
Draws air from within the work area across HEPA filters and supplied a face mask with positive pressure by battery
The purpose of aggressive air sampling is got :
To make residual fibers on surfaces airborne, simulating building occupancy and activity
When final cleaning is complete and all debris is removed from the work area
The maximum temperature of pipes where global removal is allowed is:
150 degree F
What areas into a regulated area are required by OSHA to be posted?
All Entrance and Exit
According to NYS Rule Code 56-7.11, all seams between adjacent layers shall be staggered by a distance of at least:
24 inches
What is the maximum length of the negative air exhaust duct per ICR 56
25 FT
Given the protection factor for a full face respirator is 50, the fiber concentration is the breathing zone is 300 F/cc, what is the fiber concentration inside the respirator
6 f/cc
OSHA regulations require that qualitative or quantitative fit-testing of negative pressure respirators must be done how often
Yearly
A method of analysis for air samples that differentiates between totes if fibers is:
Transmission electron microscopy
Why should arrows be placed on containment walls about 2 feet from the floor pointing in the direction of the exit?
To direct traffic in a potential fire situation
During Phase II, of an asbestos project, if the authorized visitors need a ladder or scaffolding, asbestos abatement contractors:
a. Make it available (b) Comply with OSHA 29 CFR 1926
Which material when good shape is a non-friable form of asbestos containing materials?
Vinyl asbestos floor tile
By EPA definition an asbestos containing material is any material that contains greater than ________ percent asbestos:
1
The sample taken of the material to determine asbestos content is called:
The term fiber/cc for air quality results describes
The quantity of fibers in the predetermined size range for each cubic centimeter of air in the space sampled
Ground fault circuit interrupters are used in asbestos projects to:
Reduced electrical shock potential
The difference between Phase Contrast Microscopy (PCM) and Polarized Light Microscopy (PLM) is:
PCM is used to analyze air samples; PLM is used to analyzed bulk samples
After the stripping of asbestos materials, the next procedure for the workers to perform according to ICR 56, after the first cleaning, is to
Encapsulate the surface that were not the subject of abatement
A "small asbestos project" means asbestos work:
a. Involving less than 260 linear feet of pipe insulation
b. more than 25 linear feet of pipe insulation
c. Less than 160 sq. ft. but more than 10 sq. ft of ACM
Phase contrast microscopy (PCM) counts those fibers:
5 microns or larger
HEPA filters must be:
Remove when dirty and discarded as contaminated waste
When are critical barriers allowed to be removed?
After the final visual inspection and air results are acceptable
Plastic on floor layers must extend _______ inches up the wall as a minimum
12 inches
The purpose of amending the water is to
Decrease the surface tension of the water so it "wets" better
If you are fit tested with an M.S.A. half face small respirator, can you be switch into 3M half face medium respirator without checking its fitness?
Never
Carbon monoxide (CO) intoxication may occur if you are working with:
a. Type C respirators
B. Open flame heating systems outside the work area
OSHA's 0.1 f/cc standards:
Is not a safe level
Which property certified individual is best trained to supervise the implementation of asbestos work specification for AHERA school projects?
Contractor representative
What action should a site supervisor take when ambient air counts go above 0.01 f/cc outside the containment?
Stop removal, mist air with amended water, cleanup all debris, locate and repair containment breach.
what is the maximum number of negative air exhausts that can be discharged at the same termination point?
5
A worker who, though repeatedly instructed to, repeatedly is found not wearing a respirator during removal should be:
Suspended or fired
